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8 H&A
8 H&A

Eight Hearts and Arrows Brilliance

8 H&A
8 H&A

Eight Hearts and Arrows Light

8 H&A
8 H&A

Eight Hearts and Arrows Optical Symmetry

This is the Beta version of the web site. Here you can find out about Frequently Asked Questions (FAQ). Please also read the rules if you are only a visitor of this web content using it. We reserve the right to change the contents of the site without any obligation to the visitor of this web site. DCD Group will discuss any changes related to content on the website, pricing policy, patent protection, copywriting, registered trademark, descriptions, procedures, designs, logos, as well as all accompanying content, and inform our distributors as well as the owners of the patent license in a timely manner. Please note that we are under no obligation to update the content and that it may be out of date at any given time. We do not guarantee that the site or any content on it will be free of errors or omissions. We provide this website "as is", "with all faults" and "as available" and without any express or implied warranties of any kind.



• Do not use the DCD Group corporate logo or any other DCD Group logo in any materials without the written permission of DCD Group.
• Do not register or seek to register a DCD Group trademark or name, or any mark or name that is confusingly similar to a DCD Group mark or name.
• Do not register or use any domain name that incorporates any DCD Group mark or name.
• Do not use a DCD Group trademark or name in a manner that is likely to cause confusion about the origin of any product, service, material, course, technology or other offerings.
• Unless you have prior permission from DCD Group, do not use a DCD Group trademark or name in a manner that is likely to give the impression or otherwise imply an affiliation or association between you, your products or services, and DCD Group, or any of its products, services, materials, or other offerings
• Do not use any DCD Group trademark or name as or as part of a company, product, service, solution, technology, or program name.
• Do not use a DCD Group trademark or name in a manner that is likely to dilute, defame, disparage, or harm the reputation of DCD Group.



The patent procedure is time-consuming and lasts for three years, and before the patent registration process itself, the patent itself has been developed for more than three years. It was necessary to apply all patent solutions technically, what by 2013 was not possible because on the world market there was no equipment of such high precision. In order the patent to be registered, it needs to be new, innovative and not to infringe any registered patent anywhere in the world, more precisely to not infringe the novelty and innovation of the state of the technology, and that it is industrially applicable. We are convinced that our patent gives added value to diamond jewelry, above all that an utterly natural diamond makes it affordable to the people who have not been able to think about buying diamond so far. That's precisely what we offer by the purchase of our jewelry, or by giving our license. We think you can agree with our statement that you will receive from us a product that will ultimately separate you from all the others on the market, and that is something that will act stimulating in the spread of your business. Please bear in mind that without our knowledge and written consent, you do not enter the market with our patented products and patented procedures; otherwise, we will be forced to defend our interests by engaging a reference lawyer offices to protect our rights.


The www.dcd.group web site contains links to other web sites. Please be aware that DCD Group is not responsible for the privacy practices of these other web sites. We encourage our users to read the privacy statements of each and every web site that collects personally identifiable information. This web site contains following external links:
1) https://www.youtube.com/watch?v=Grqe_BRN8AI
2) https://www.youtube.com/watch?v=XKO0hs_fozI
3) https://www.youtube.com/watch?v=XDWU1SmnpDY
4) https://www.youtube.com/watch?v=0E0GbV3FbfY
5) https://www.youtube.com/watch?time_continue=1&v=tXdPlZPI9qM
6) https://www.youtube.com/watch?v=-pXhEj9klZk
7) https://www.youtube.com/watch?v=5p7BP_i8kkY
8) https://www.gia.edu/report-check-landing

Third Party Services

This Site may contain links or references to other websites outside of our control. We are not responsible for these websites or any contents thereof. The inclusion of any such links on our pages shall not constitute an endorsement of, or representation or warranty by, us regarding the content of such websites, the products or services of such websites, or the operators of such websites. You should consult the other websites’ privacy policies and terms of use as we have no control over information that is submitted to, or collected by, these third-party websites. We will not be liable for any damages or losses or expenses, even if foreseeable, that may arise from your use of these third-party websites or for the actions and customer information practices of any website to which our Site links or refers.



DCD Group DOES NOT USE tracking cookies and especially third-party tracking cookies. Unlike the others on the web, we consider the tracking cookies as a violation of your privacy.

The DCD Group uses the Extended Validation (EV) SSL certificate.
SSL certificate is a piece of code on a web server that provides secure online communication. When a web browser establishes contact with a secure site, the SSL certificate produces an encrypted connection. It's like sealing the envelope before sending it by mail.
Extended Validation is the highest standard of verification and in a striking way, assures users of the authenticity and security of the site: the browser's address bar becomes green.
Encryption is the mathematical process of coding and decoding information. Each SSL certificate contains a public/private couple of keys: a private encoder and a public decoder. The private key is installed on the server and does not share with anyone, never. The public key is in the SSL certificate, and it is shared with web browsers.

DCD Group strictly forbids the advertising of its products by e-mail. We do not want to misuse your trust in any way, so you will not receive any e-mail from us in order to advertise, promote, and /or buying our products. If you receive an e-mail relating to DCD Group, we will understand this as spamming and endangering your privacy, and please report us the e-mail content as well as the e-mail address from which you received it.

The DCD Group does not store your information, nor stores it and/or gives it to a third party.

DCD Group does not allow the advertising of its products by sharing flyers, brochures, catalogs, stickers, banners, or by inserting them into your mailbox. This is considered as aggressive marketing.

Know How

Know How

We know how, as regards to the procedure itself and as far as obtaining a patented product. To correctly perform the process, as well as to get a licensed product, a whole range of various equipment, tools, and machines is needed. DCD Group will issue an LOTD ( Letter of Technical Direction ) to its licensee, where we will explain him/her details of the procedure itself, as well as the necessary equipment to obtain the patented product. Depending on the production capacity of our new licensee, we can organize the training of employees in our production capacities.

COI ( Conflict of Interest )

COI ( Conflict of Interest )

As we emphasized in the content of this website, in order to maximally protect the licensee as well as distributor, the license will not be issued for the country in which the distributor already exists, and vice versa, in the country where the licensee is located, there will be no distributor.

Taxes and VAT

Taxes and VAT

Import duty (customs duty tax), customs clearance fee, VAT (Value added tax), the currency exchange rate, as well as all possible additional costs associated with import, are borne by the distributor. In order to reduce these costs to its distributors as much as possible, DCD Group will sell jewelry without any margin on diamonds, i.e., the distributor will receive the diamonds at the manufacturing factory price. The only profit DCD Group will realize is the minimum margin based on making our jewelry. DCD Group carries shipping costs to the country of the distributor. Please, before signing the jewelry distribution contract, you should be well informed about all import costs as well as legal regulations related to diamond jewelry trade in the country of distribution. To be able to calculate the customs duties to be paid when trading goods, the three factors must be taken into account:

1. The value of the goods
2. The customs tariff to be applied
3. The origin of the goods

In most countries, a customs duty tax is calculated by calculating the customs rate on the customs base from the customs tariff. Check out the rate of customs duty from your country's customs tariff. In many states, the customs duty rate includes transport costs.

Where is your jewelry made?


The whole range of our jewelry is made in Europe (Serbia, Belgrade). Serbia is a country possessing qualified workforce and tradition in making jewelry since the time of Byzantium because the jewelry was developed on the territory of modern Serbia using the filigree method. Serbia is not a part of the European Union, but in addition to its long tradition of jewelry making, it has excellent geographical features position due to the proximity of the European Union. Namely, most countries surrounding this country are the EU Member States. Therefore, the vicinity of the EU, a long tradition in jewelry manufacture dating back to the 12th century, will make our distributor able to make a significant margin and thereby sell top quality jewelry. If you add that our distributors receive diamonds at factory prices, we are sure that you will make the right choice by choosing DCD Group. We select only the most skilled artisans to craft our jewelry.

Conflict-Free Policy


DCD Group does not deal with polished and/or rough diamonds from areas affected by illicit activity, such as Sierra Leone, Ivory Coast, Liberia, the Democratic Republic of Congo and Angola. We are in complete compliance with the Kimberley Process Certification Scheme (KPCS), the Patriot Act, and United Nations resolutions. We are dealing with only 100% ethically mined diamonds. More information about KPCS you'll find it here: https://kimberleyprocessstatistics.org/



Every piece of our jewelry is packed in an exclusive wooden box of walnut wood or wood of wild cherry. Please bear in mind that the retail market price of one such box ranges from 40 to 120 US dollars. Wooden crates are made of quality sorted and well-dried nutt wood and wild cherry wood. We guarantee the same size, shape, and quality for each box manufactured by using the CNC machine. Each box is unique, considering the variety of texture and wood pattern.

Stamps & Hallmarks


Maker: Who made the piece.
Standard Mark: The guaranteed standard of fineness or purity.
Assay Office: The Assay Office that tested and marked the item.

Every piece of silver jewelry weighing more than three grams must have three stamps, which are: 1) manufacturer stamp; 2) trademark of the reference state institution (in our case, since jewelry is produced in Serbia, it is the Directorate of Measures and Precious Metals - Republic of Serbia, Ministry of Economy); 3) the precious metal stamp (every precious metal has a different stamp).

The rules are the same for gold jewelry as well as for platinum jewelry, with that every piece of jewelry over the weight of one gram must have these three trademarks.

Every piece of silver jewelry that is lighter than 3 grams, as well as every piece of gold jewelry and jewelry made of platinum that is lighter than one gram, has two stamps - 1) manufacturer's mark 2) stamp of precious metal

Our distributors will be thoroughly acquainted with the correct appearance of these three trademarks.

Diamond Certificate


GIA Diamond Grading Report or GIA Diamond Certificate is the most reliable certification in the world. In addition to the GIA certification, there are many more laboratories that issue certificates; however, the DCD Group send GIA Diamond Certificate with each piece of jewelry in which the diamond greater than 0.5 CTW is set. The GIA Diamond Certificate contains the following:

Shape and Cutting Style: The diamond shape and cutting style.

Measurement: Lists the diamond's dimensions in millimeters.

Carat Weight: The weight of diamond listed to the nearest hundredth of a carat.

Color Grade: A grading which assesses the absence of color in a diamond.

Clarity Grade: Clarity grade determined under 10x magnification.

Cut Grade: A grade of cut as determined by a diamond's face-up appearance, design and craftsmanship. A cut grade is available on round diamonds graded after Jan. 1, 2006.

Finish: Grades that represent a diamond's surface and facet placement.

Polish: Rating the overall smoothness of the diamond's surface.

Symmetry: Measuring the shape, alignment and placement of the diamond's facets in relation to one another as well as the evenness of the outline.

Fluorescence: Color, and strength of color when diamond is viewed under UV light.

Comments: A description of additional diamond characteristics not already mentioned in the report.

Clarity Plot: A map of the approximate size, type, and position of inclusions as viewed under a microscope.

Proportion Diagram: A map of the diamond's actual proportions.

Are all of your diamonds natural?

Yes, we only carry natural diamonds and do not sell laboratory or man-made diamonds.

Is it safe to get diamonds by courier?

Since we ship our diamonds by carriers like FedEx or DHL, the incidence of loss is generally no greater than with any other item you might ship. Additionally, all shipments are sent fully insured.

Enhanced Diamonds


Enhanced diamonds are natural diamonds that are subjected to some of the treatments below:

HP-HT - High pressure, high temperature treatment

HP-HT treatment is mostly applied to type II a diamonds, which have no nitrogen and are usually colorless but due to distortion of crystal lattice sometimes show brown color. Exposing the diamond to high pressure and high temperature eliminates the brown color by reducing or removing the structural irregularities in the crystal lattice. In type Ia diamonds, of brown color, the HP-HT process causes dispersion of paired nitrogen into single nitrogen molecules, and causes the diamond to take on a fancy yellow to yellow-green color. This transforms an unsaleable, poor color diamond into a valuable, fancy color diamond, but this is usually easily detected as the stone will have a strong reaction to ultraviolet light that helps to identify the HP-HT-treated fancy yellow-green diamond. The HP-HT treatment is detected by testing the photo-luminescence using a Raman spectroscope under liquid nitrogen temperature (-196°C).

Laser Drilling and Fracture Filling

The clarity enhancement process is not visible to the naked eye. Only a trained jeweler can detect clarity-enhancement. Technically, the clarity enhancement process works like this:
Many diamonds come from the earth with feathers and tiny black inclusions inside them. Even if they are hard to see, they tend to scatter light and reduce the brilliance of the diamond.To reach the inclusion, a laser drill is used to create a tiny hole reaching deep inside the diamond. Often the laser's heat will vaporize the speck. If not, acid is poured into the hole, usually dissolving the spot or bleaching it to a less noticeable white color. This technique is much like a car windshield crack treatment. It is a microscopic amount of material.This material has the same optical properties as the diamond. When light travels from one medium to another, it either changes its course or reflects in a different direction. When light attempts to pass through a non-enhanced diamond that has a feather, the light hits the feather and reflects off in any number of directions. That is why we see the feather, and the diamond does not appear to be clean. With a clarity-enhanced diamond, the light passes through the natural feather because the material used for the enhancement has the same optical characteristics as the diamond. The beam of light behaves as if it is still traveling through the same material (diamond) and continues its original course. The effect of this treatment can be very dramatic, turning a very "ugly" diamond into one that is remarkably brilliant. Such diamonds are sometimes called "fracture-filled diamonds".

Internal laser treatment

In internal laser treatment there is no drill hole or drill channel present, but the laser leaves a worm-like squiggle; this treatment is also known as KM treatment. KM stands for ‘Kiduah Meyuhad’ in Hebrew, meaning ‘special drill’. This treatment is used on black inclusions, which are accompanied by internal fractures. One or more pulses of the laser beam are focused on the inclusion, with the resulting heat creating an internal fracture. The inclusion is then bleached by boiling the diamond in strong acid under pressure. The created feather is very difficult to differentiate from the natural feather, but it can be easily spotted under high magnification of a microscope using different lighting techniques by an experienced diamond grader/gemologist.

Color treatment - Surface coating

Surface coating applies a thin layer of colored foreign material to all or part of a diamond surface, to either mask the underlying body color or enhance a desirable color. Most often, this coating is applied to the pavilion and/or girdle of the diamond; the way that light refracts as it passes through a diamond then creates the illusion of uniform color distribution. The durability of diamond coatings varies considerably, depending on materials used and methods of coating applied. Most recent advances in technology employ a very thin optical or chemical film, which is more durable than older methods, but still readily worn away by heat, scratching, abrasion, polishing, and just everyday wear. The coating, if damaged, can be picked up under microscope by an experienced diamond grader/gemologist.

Irradiation and annealing

Radiation from high-energy particles is used in creating color centers in diamonds. These radiations alter or damage the crystal structure and change or intensify color. The most common colors caused by irradiation are different hues of blue and green. Heating (annealing) the diamond after bombarding it with charged particles results in the modification of the bluish-green colors to yellows, oranges and sometimes pinks, reds and purples. Depending on the type of radiation used, the color may be restricted to the surface or penetrate the whole stone. This is a stable treatment under normal situations. The treatment can be detected by testing the absorption spectrum using the UV-Vis spectrophotometer and photo-luminescence using the Raman spectroscope under liquid nitrogen temperature.

Cyclotroning and Gamma Rays

Cyclotroning: A diamond is bombarded with protons and deuterons via cyclotrons. Cyclotroned diamonds take on a superficial blue-green or green color and are annealed to 800°C to turn them yellow or orange. This method has become comparatively rare.

Gamma rays: This is the cheapest and safest method of irradiating diamonds, but the treatment can take months. Gamma ray bombardment of a diamond through exposure to cobalt-60 produces a blue to blue-green color that penetrates the entire stone. Blue diamonds produced through irradiation are not semiconductors of electricity, unlike their natural counterparts.

Heat treatment, graphite treatment

Low quality, heavily-included diamonds are heated in a vacuum to form graphite deposits within the fractures, resulting in black diamonds. The majority of black diamonds found in the diamond market are treated and spectroscopic methods are used to authenticate the origin of color.

Multiple treatments on diamonds have become common.

Feedback, Comments and Suggestions


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